531065049 has 4 divisors (see below), whose sum is σ = 708086736. Its totient is φ = 354043364.

The previous prime is 531065027. The next prime is 531065063. The reversal of 531065049 is 940560135.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 531065049 - 2¹³ = 531056857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (531065089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88510839 + ... + 88510844.

It is an arithmetic number, because the mean of its divisors is an integer number (177021684).

Almost surely, 2^531065049 is an apocalyptic number.

It is an amenable number.

531065049 is a deficient number, since it is larger than the sum of its proper divisors (177021687).

531065049 is a wasteful number, since it uses less digits than its factorization.

531065049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177021686.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 531065049 is about 23044.8486434604. The cubic root of 531065049 is about 809.8089520468.

The spelling of 531065049 in words is "five hundred thirty-one million, sixty-five thousand, forty-nine".